Robin Williams

But the crickets that you used in your study...

What happened to them after the tests were done and finished?

What about a mosquito in your bedroom at night time?

Tom White from the University of Sydney, showing that even entomologists can get the heebie-jeebies from creepy crawlies.

And down the track, we'll take a look at what this kind of pain research means for insects and us.

Yes, Bill, recognising pain in such creatures is a challenge, but one consolation is that they reproduce quickly and numbers are large, so you can experiment and see effects.

But now moving to larger creatures, especially birds, Pamela Yeh from the University of California, Los Angeles, has found with little sparrow types that you can actually see change on the university campus quite quickly, meaning that it's like that in every town and farm.

If only you looked, such as with juncos.

And because they're really cute, people do what I do, and that's feed them.

And is this a case of the more they interact with people who have food, so in fact something about those birds changes, evolves, adapts?

What's happened?

Back to nature for them rather than people.

Well, I seem to remember there was a young man aged about 23 called Charles who went to somewhere off the coast of South America.

Galapagos, was it, perhaps, with lots of islands?

And on each island was a different sort of food.

And guess what?

And so how are you following that up now here on campus to see how quickly, because that's an awfully short time for adaptation to take place on a discernible way.

And reproduce.

You have seen it before and it's very interesting.

But also the other aspect of what you're talking about is having people, ordinary people, looking around their parks, their campuses and their gardens.